Small problem in testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-[1-4].cc

[Paolo Carlini]

Pétur Runólfsson wrote:

>>Hummmm. However, for some reason the original testcase gave problems on 
>>64 bit platforms, like x86-64:
>>
>>11305-1.exe: 
>>/usr/src/aj/cvs/gcc/libstdc++-v3/testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-1.cc:38: 
>>void test01(): Assertion `n1 != (0xffffffffu)' failed.
>>FAIL: 27_io/basic_filebuf/overflow/wchar_t/11305-1.cc execution test
>>
>>Any idea why?
>>    
>>
>One possible explanation is that the C library is failing to convert
>these characters. They are also used in some tests in
>22_locale/codecvt, are there any failures there?
>
Doesn't seem so... I think the baset thing to do is restoring the proper 
sputc() arguments and then investigate on which 64 platforms, with which 
libc, the testcases fail.

>>We can try restoring only the sputc() argument of your original testcase 
>>and see what happens...
>>    
>>
>Since wfilebuf::int_type is the same type as wint_t and
>wfilebuf::traits_type::eof() == WEOF the testcase should fail (if it
>doesn't, there is a bug somewhere else).
>
I agree.

Paolo.